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Convert text into number in MySQL query
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This should work:
SELECT field,CONVERT(SUBSTRING_INDEX(field,'-',-1),UNSIGNED INTEGER) AS num
FROM table
ORDER BY num;
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Get loop count inside a Python FOR loop
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Using zip function we can get both element and index.
countries = ['Pakistan','India','China','Russia','USA']
for index, element zip(range(0,countries),countries):
print('Index : ',index)
print(' Element : ', element,'\n')
output : Index : 0 Element ...
What is the naming convention in Python for variable and function names?
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@PrahladYeri: Unfortunately, unittest.TestCase.assertEqual and friends don't follow the snake_case convention, either. The truth is that parts of the Python standard library were developed before the conventions had solidified, and we are now stuck with them.
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App Inventor 2 中文网 · 项目指南
... 支持蓝牙 SPP / BLE、TCP、FTP 与 SQLite，探索智能硬件、数据存储和更多应用场景。 BluetoothTCP / FTPSQLite 01 / 真机实时测试 ...
Resolving a Git conflict with binary files
...ove the change from the "both modified, need merge" list and add it to the index, and I think that's not correct. I believe you will need to run git add after the checkout.
– Tim Keating
May 13 '13 at 21:06
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Entity Framework and SQL Server View
...however in most cases it will foul SQL optimizer and it will not use right indexes.
It may be obvious for somebody, but I burned hours solving performance issues using Tillito solution. Lets say you have the table:
Create table OrderDetail
(
Id int primary key,
CustomerId int ...
Copying files from host to Docker container
...great! But don't forget to commit the change: docker commit `docker ps -l -q` ubuntu-with-file. Else the change will be lost (use whatever name you want instead of ubuntu-with-file)
– Michael_Scharf
Sep 26 '14 at 23:32
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通信连接组件 · App Inventor 2 中文网
...glat
调用百度地图的uri参考地址：https://lbsyun.baidu.com/index.php?title=uri/api/web
打开系统照相机（比照相机组件打开的界面会丰富一些）
Action: android.media.action.STILL_IMAGE_CAMERA
可选取多个文件（图片、音频、...
Replace whole line containing a string using Sed
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@MarcusDowning GNU sed does not require the space; it works just fine as originally posted. If your particular sed requires the space, then by all means note which sed is incompatible and add the necessary invocation as a comment. However, please don't change...
Get all unique values in a JavaScript array (remove duplicates)
...ing way to get an array with unique values:
function onlyUnique(value, index, self) {
return self.indexOf(value) === index;
}
// usage example:
var a = ['a', 1, 'a', 2, '1'];
var unique = a.filter(onlyUnique);
console.log(unique); // ['a', 1, 2, '1']
The native method filter will loop ...